Calometric wattmeter



FIG. 1 is a perspective view of the calometric wattmeter of the present invention showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevational view thereof with the rear elevational view being a mere image thereof; and,

FIG. 4 is a side elevational view thereof. 

The ornamental design for a calometric wattmeter, as shown and described. 